Answer:

coots

Answer	Crossword Clue
COOTS	Migratory marsh birds
COOTS	Old fools
COOTS	Crotchety ones

COOTS	Geezers
COOTS	Mud hens
COOTS	Odd oldsters
COOTS	Crotchety types
COOTS	Codgers
COOTS	Old geezers
COOTS	Old buzzards
COOTS	Old fogies

COOTS	Stodgy ones
COOTS	Noisy aquatic birds
COOTS	Mud hens.
COOTS	Water birds.
COOTS	Aquatic birds.
COOTS	Diving birds.
COOTS	Rails.
COOTS	Relatives of the rail.

COOTS	Surf ducks.
COOTS	Waterfowl.
COOTS	Scoters.
COOTS	Odd ones.
COOTS	Water birds
COOTS	Ducklike birds
COOTS	Codgers or birds
COOTS	Aquatic birds

COOTS	Scoters
COOTS	Old codgers
COOTS	Foolish old men
COOTS	Crotchety old men
COOTS	Marsh hens
COOTS	Old buzzards?
COOTS	Marsh birds

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.